Sony WLL-CA55, Руководство по обслуживанию

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2-5 (E)
WLL-CA55
2-4. Analog Level Adjustment
n
Perform the Adjustments continuously from Sections 2-4-1
to 2-4-2 in order.
2-4-1. Analog Video Level Adjustment
Tools
.
Color video camera: BVP-550/570/(950)
. Digital multi meter: Advantest R6441B or equivalent
. Extension board: EX-819
(Sony Part No.: A-8327-481-A)
Preparations
1. Set the DC LINE switch of the unit and power of the
camera to OFF, and connect the unit to the camera.
2. Extend the VPR-84 board using the EX-819 board.
(Refer to steps 1 to 3 in Section 1-14.)
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When adjusting the unit using the BVP-950, set the
switch S600-8 on the VPR-84 board to ON referring to
Section 1-6.
3. Set the switch S201-4 on the IF-936 board to ON.
4. Set the OUTPUT/AUTO KNEE switch or OUTPUT/
DCC switch of the camera to BARS/OFF.
5. Set the DC LINE switch of the unit and power of the
camera to ON, and warm up these units for about ten
minutes.
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If the EL display is unlit, press the DISPLAY button to
light the display.
EL display
*
F a c t o r y
*
1 AN 1 : ***
2 AN 2 : ***
3 A/D BTM : ***
4 B A/D TOP :
***
5 B PED : ***
6. Perform the following steps to display the Factory1
menu.
(1) Press the MENU dial to display the main menu.
(2) Set the cursor to “Factory1” by turning the MENU
dial, and press the MENU dial.
Bottom Level Adjustment
1. Set the cursor to “3 A/D BTM” by turning the MENU
dial, and press the MENU dial.
2. Adjust the bottom level by turning the MENU dial.
Equipment:
Digital multi meter
Test Point: TP407 (GND : E301)/VPR-84
board
Adjustment Point: 3 A/D BTM (reference: D5)
Specifications:
2.00 V
±
0.02 V dc
3. Press the MENU dial to store the adjustment value.
EL display
*
F a c t o r y
*
1 AN 1 : ***
2 AN 2 : ***
3 A/D BTM : ***
4 B A/D TOP :
***
5 B PED : ***
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